Improvement in car ventilators or screens



l. A. SALMON.

Car-Ventilatrs ur Screens.

Patented April 28, 1874.

N0.l50,l92.

UNITED STATES PATENT OEEIoEo IBA A. SALMON, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN CAR VENTILATORS OR SCREENS.v

Specification forming part of Letters Patent No. 150,192, dated April2B, 1874 application filed October 21, 1873.

To all whom t may concern:

Be it known that I, IRA A. SALMON, of Boston, Massachusetts, haveinvented a new and useful Improvement in Ventilators or Screens, oi'which the following is a full, clear, and exact description, referencebeing had to the accompanying drawings, making a part of thisspecification, in which- Figure l is a perspective view of my invention.Fig. 2 is a front view with screen reversed. Fig. 3 is a section throughthe line w ac.

My invention relates to that class of ventilators applied to the windowsof passengercars on railways, in order to produce such a current in theair as will keep sparks and cinders from entering the car when thewindows are open 5 and it consists in the combination and arrangement ofa curved plate of metal or other suitable material with supporting rods,braces, and slides.

To enable others skilled in the art to make and use my invention, I willproceed to describe the exact manner in which I have carried it Out.

In the drawings, A represents a window of a railway car with myinvention attached thereto. Horizontally across the window, near theupper and lower edges, are secured the bars c a. B is a curved plate, asshown in Fig. 3, having, at its upper and lower ends, a brace, c,pivoted to the slide b. This slide is made to it smoothly over the bara, so as to move along the bar from side to side, in order to change theplate B from one side of the window to the other, as may be required. Onthat side of the plate B next the ends of the car, and on the endwindows only, is a catch,

d, which passes through the eye c, and holds all the plates imposition.A wire, n, may be used, secured to the pins m my, uniting all thescreens on one' side of the car, so that by changing the forward screenall the rest will be changed to suit the direction of the cars.

The operation of my invention is as follows: Suppose the plate or screenB to be in the position shown in Fig. l. The passenger is on the left,and sits facing the screen. The cinders from the engine, instead ofentering the open window of the car, will be turned oli' by the curvedplate B, which causes the current of air to eddy or glance from the car.The plate B may be made of any ornamental curve shape.

What I claim as new, and desire to secure by Letters Patent, is-

The curved plate B, constructed with the braces c, in combination withthe bars a a and slides b b, when applied to a railway-car window,substantially as and for the purpose set forth.

IRA A. SALMON. Witnesses:

A. K. P. JOY, WM. H. STUBBE.

